cranks threaded, stuck on the bike

so, I used a crappy BB tool, I stripped the threads of my NDS crank and now can't take in out, I managed to take the DS crank but can't access the left BB cup to take it out
I tried:
supergluing the tool into the stripped thread, not enough resistance
hamering the damn thing off
leverage against the BB shell
Hammering the axle via a crankbolt
and sometimes all of this at once

Question: do I need to take the hacksaw out or have I got another option which would save me half a day of pain?

Oh yeah I've also done a 1000miles since this "incident" and the BB is shot so I HAVE to replace it.

Can't remember what the tool is called but we've got one at work, it's like a fork but each prong is a wedge, you put it either side of the taper and hammer it in, pushes the crank right off.

yes perfect, now do you work in Paris... good idea for me though, I'll look around.

Unfortunately I'm in Manchester, but if you can get a 'Ball joint separator', which is the tool I was on about. (Just remembered) from an auto shop or mechanic, that should do the trick.

i would recommend you to buy yourself 6 inch puller, just google it, either 2 leg version or 3 leg version which can be transformed to 2 legged version(it has 4 fitments). it costs about 15 pounds and its worth buying

or get a hammer and gently bash the threads of the crank over the bolt
(this sort of assumes you are going to buy a new crank)
If you peen (the technical term) the threads over the bolt enough simply unscrewing the bolt will pull the crank off

yup new cranks/BB are waiting, good idea too, thanks.

Bit of heat n a hammer, if you're careful
Spot weld tool to crank
Flywheel puller
Few options, if you love your frame, old, sentimental, pristine etc I'd go straight for the hacksaw/dremel doesn't take long

http://www.lfgss.com/post2629353-6.html might be a possibility.

yes, good find

Crank bolt out, ride around.

Crank will be off in 5 minutes.

Probably less if it's fixed and you can apply pressure in both directions ie do a skid.

Badaboom tish, mindblown, I feel rather dumb now.
Moth: to add to this technique, no need to screw the cup halfway, I think a stem spacer would do the trick and be safer for the frame.

the tool of choice for all your cycling problems